I've been using the new 2009 Mac mini since it came out. I love the little machine; my original plan was to use it as a light desktop and my MacBook Pro as my portable. Anyways, times have changed: I use this Mac mini as a desktop a lot. In fact it's gotten to a point where I think I've exceeded the capabilities of this computer. The issues I have are: 1) Constant memory swapping, 2) Lagging UI, 3) Slow to open applications and move between applications, 4) Switching between Spaces take about 3-5 seconds on average, 5) CPU loads at 4.0+ constantly with 190% CPU usage 24/7. The reason for the CPU and memory usage: 1) VMs running 24/7, 2) File server, 3) More than 15 apps open 24/7. It also really annoys me that I cannot play any 1080p videos and some 720p videosa deficiency even when no other programs are running. Now will I do better with a Mac Pro? Yes this is a big jump from a Mac mini to a Mac Pro, but I need to be able know that such a jump would be justifiable. I know I can benefit from more RAM: I would get at least 12GB of RAM. It would certain speed things up if my Mac mini could support more RAM. The Mac Pro loud? I have my Mac mini about 5 feet away from my bed, and it's on 24/7. I don't sleep my desktop; would I be annoyed with a Mac Pro? I've had a few HDD scares within the last few months: I want the Mac Pro RAID carda good card to own? I won't be running BootCamp at all, since I run VMs now. I can afford it, but I don't want to waste my moneyis this a worthy upgrade for my uses? I won't be making money off the machine I really am getting frustrated with this computer right now; typing this post has resulted in around 6 instances of computer lock up, as in everything just pauses as if it was overwhelmed. Regards.